Automobile-jack



S. HEYMANN.

AUTOMOBILE JACK.

APPLlcATloN FILED APR. a0. 1920.

Patented Aug. 2, 1921.

2 SHEETS-SHEET ls. HEYMANN.

AUTOMOBILE JACK. APPLICATION FILED APR. 30| 1920.

Patend Aug. 2, 1921.

I si UNITED STATES PATENT OFFICE.

SIDNEY HEYMANN, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF T0 PHILIP S. 'HEYMANIL OF PITTSBURGH, PENNSYLVANIA.

AUTOMOBILE-J' ACK.

Specication of Letters Patent.

Patented Aug. 2, 1921.

Application led April 30, 1920. Serial No. 377,762.

To @U1/)hom tmay concern.'

Be it known that I, SIDNEY HEYMANN, residing at New York, in the county and State of New York, have invented certain new and useful Improvements in an Automobile-Jack, of which the following is a speciication.

This invention relates to jacks, and more particularly to jacks adapted for raising automobiles, auto trucks and the like.

One of the objects of the invention is to provide a. new and improved jack of the above character, such that the same may be conveniently controlled by the operator of a motor vehicle from a position at the dash of said vehicle.

Another object of the invention is to provide a jack of the above character which is mounted upon the vehicle and therefore always ready for use, and which is certain and positive in operation.

Other objects and aims of the invention more or less specific than those referred to above, will be in part obvious and in part pointed out in the course of the following description ofthe elements, combinations, arrangements of parts and applications of principles, constituting the 1nvent1on; and the scope of protection contemplated wlll be indicated in the appended claims.

Y In the accompanying drawings, wherein I have illustrated a preferred form of embodiment of my invention:

Figure 1 is a top plan view of a motor car equipped with my invention.

Fig. 2 is a vertical sectional view taken through one of the jacks.

Fig. 3 is a similar view, but taken at right angles to Fig. 1.

Fig. 4 is a horizontal sectional view upon an enlarged scale, taken through the clutch mechanism, said view being taken on line 4 4 of Fig. 5.

Fig. 5 is an end elevational view showing the clutch mechanism.

Fig. 6 is a vertical sectional view, taken on line 6--6 of Fig. 4; and

Fig. 7 is a vertical sectional view taken on line 7-7 of Fig. 4.

Referring now to the drawings, wherein similar reference characters refer to similar parts throughout the several views thereof, the reference numerals 1 and 2 denote the axles of a. motor car, to each of which axles is clamped a plurality of jacks, the jacks upon the front axle being designated 3 and 4, and the jacks upon the rear axles being designated 5 and 6. As shown in the drawings, each of said jacks is clamped to its axle as by means of a detachable clamp 7.

Suitably mounted upon the front end of the car and under the cowl thereof, is a bedplate 8, which forms a support for the clutch and jack driving mechanism about to be described. The bed-plate 8 has erected thereon a plurality of standards 9, 10 and 11. Journaled in the standard 9 is a drive shaft 12, provided exteriorly with a` friction wheel 13, which is so mounted as to have a con- Stant frictional engagement with the ii wheel 14 of the automobile. Shaft 12 is therefore being constantly driven when the engine of the motor vehicle is operated.

lidab-ly mounted upon the shaft 12 and splined thereto is a clutch member 15, said clutch member being adapted to be slid upon its shaft by a forked bell-crank lever 16, the forked ends 17 and 18 of which straddle said clutch member and have blocks 19 which are located in a groove or recess 20 provided in said clutch member. VThe clutch member 15 is provided with a cone shaped clutching part 21, which is adapted to engage with a correspondingly shaped friction part 22, provided upon a shaft 23 which is journaled in the standards 10 and 11. The drive shaft 12 has a reduced part 24, which enters a recess 25 formed in the shaft 23, so that the inner end of the shaft 12 will have a suitable support or bearings.

Carried by the shaft 23 is a worm 26, said worm being in constant mesh with two pairs of worm Wheels 27 and 28 mounted upon vertically disposed shafts 29 suitably journaled in the bed-plate 8. Each of shafts 29 has attached to the lower end 30 thereof a flexible chain, each of which chains extend from its respective shaft to one of the jack members3, 4,5 and 6, the chains being desi nated`31, 32, 33 and 34. The opposite ends of said chains are connected with shafts 35, journaled in the plate 36 carried by the casing of each of the jacks, and each of shafts 35 being provided with a bevel gear wheel 37, which meshes with a bevel wheel 38. Each of the bevel wheels 38 is threaded upon the upper ends of the jack shafts 39, so that whe-n said bevel gear wheels 38 are rotated, the shafts 39 will be moved upwardly or downwardly in the casing 40 of the jacks,

' with a lever 44, the latter having an operwhereby the feet 41 'of the jacks will be engaged with or removed from the ground, as is usual in such constructions.

Chain members 31 to 34 inclusive are preferably covered with a fiexible covering inf dicated at 42. By means of the construction just described, it will be noted that when the clutch member 15 is slid along the drive shaft 12 the friction surface 2l and 22 will be engaged, whereby a drive connection will |be established between the shafts l2 and 23, whereby the worm 26 will be rotated, thereby through the connections just described, causing a rotative movement of the jack shafts 39, the parts being so connected in the present instance that the feet 41 will be forced downwardly in engagement with the ground, thereby causing the road wheels of the vehicle to be raised therefrom.

The clutch member 15 is as above described slid along the drive shaft 12 by means of the forked bell-crank lever 16, each of which is connected by means of a link 43 ating handle 45 disposed at the dash of the car, permitting the same to be engaged by the foot of the driver.

The reference numeral 46 denotes a shaft which is mounted in the standards 9 and 10, directly above the drive shaft 12, said shaft having slidably mounted thereon a collar 47, said collar carrying at its opposite ends the gear wheels 48 and 49. The gear wheel 48 is adapted to engage with gear teeth 50 provided upon tHe head 52 ofthe shaft 23, which head carries a friction vsurface 22. The gear wheel 49 is adapted to engage with a gear wheel 51 mounted upon a Countershaft 51', suitably journaled in the standards 9 and 10, the gear wheel'5l being in mesh with gear teeth 52 provided exteriorly of the clutch member 15.

The collar 47 is slid longitudinally of the shaft 46- by means of avforked |bell-crank lever 53, the forked ends 54 and 55 of which stra-ddle the collar 47, and which are provided with blocks 56 which ride in a circumferential groove 57 provided in said collar. The forked lever 53 is provided with a link 58 which is connected with an operating lever 59 having an operating handle 60 disposed at the 'dash of the cai". t

By means of the construction just described it will be noted that when the collar 47 is slid along the shaft 46 the gear teeth 48 thereof will be engaged with the gear teeth 50 of the head 51', whereby the rotation of the worm shaft 23 will be reversed, thereby through the connections above described, causing a reversal of the rotative movements of the jack shaft 39, and lifting the jacks from the ground. The gear wheel 51 is of course in constant mesh with the gear teeth 52 of the clutch member 15, sothat the action of thecounter-shaft above pointed out, in a simple yet efficient manner, where by a simple operation. of the lever at the dash, the car may be either lifted fromthe ground, or when lifted may be easily and conveniently lowered to the ground, the power for the operation being furnished by the engine of the oar.

As many changes could be made in this construction without departing from the scope of the following claims, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative only and not in a limiting sense.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. In automobile jacks, the combination with a base provided with standards, of a worm shaft journaled in the said standards, a clutch shaft having one end journaled in one ofthe said standards and the other end j ournaled in the end of the said worm shaft, a clutch member secured to the said worm shaft, a clutch member driven by the said clutch shaft and movable along the said shaft and arranged to engage the said member on the worm shaft, a lever and connections for operating the said movable clutch member, a gear-operated jack, a worm pinion supported by the said base in onev side of the said vworm shaft and in mesh therewith, and a iexible shaft attached to the said pinion and connected with the gearing of the said jack to operate the same.

2. In automobile jacks, the combination with a base provided with standards, of a worm shaft journaled in the said standards, a clutch shaft having one end journaled in one of the said standards and the other end journaled in the end of the said worm shaft, a clutch member secured to the-said worm shaft, a clutch member driven by the said clutch shaft and movable along the said shaft and arranged to engage the said member on the worm shaft, a lever and connections for operating the movable member, worm pinions supported b the said base in pairs on opposite sides o the worm shaft and in engagement therewith, a plurality of gear-operated jacks, and a plurality of flexible shafts each worm pinion having one of said flexible shafts attached thereto, and the said shafts passing downwardly through the said base and being connected with the gearing of the said acks to operate the same.

3. In automobile jacks, the combination with a base provided with standards, of a worm shaft journaled in the said standards,

a clutch shaft having one end journaled in one of the said standards and the other end journaled in the end of the said worm shaft, a clutch member secured to the said worm shaft, a clutch member driven by the said clutch shaft and movable into engagement with the said clutch member on the' Worm shaft, a lever and connections for operating 'the said movable member, means including the said movable clutch member and movable into engagment with the said clutch member on the Worm shaft for rotating said clutch member in a reverse direction, a second lever and connections for operating the said reversing means, worm pinions supported by the said base in pairs on opposite sides of the said worm shaft and in engagement therewith, a plurality of gear-operated jacks, and a plurality of flexible shafts each worm pinion having one of the said flexible shafts attached thereto, and the said'shafts passing downwardly through the said base and being connected With the gearing of the said jacks to operate the same.`

4. In automobile jacks, the combination with a base provided with standards, of a worm shaft journaled in the said standards, a clutch shaft having one end journaled in one of the said standards and the other end journaled in the end of the said worm shaft, a clutch member secured to the said worm shaft, lever-actuated mechanism arranged to be driven by the said clutch shaft and to engage the said clutch member on the worm shaft for revolving the said member in opposite directions at the-will of the operator, worm pinions supported by the said base in .pairs on opposite sides of the said Worm shaft and in engagement therewith, a plurality of gear-operated jacks, and a plurality of flexible shafts each worm pinion having one of the said flexible shafts attached thereto and the said shafts passing downwardly through the said base and being connected with the gearing of the said jacks to operate the same.

In testimony whereof, I aiix my signature in the presence of two witnesses.

SIDNEY HEYMANN.

EMMA WEINBERG, IRVING A. Hamm. 

